Practical Calculation of Cable-Stayed Arch Bridge Lateral Stability

2014 ◽  
Vol 587-589 ◽  
pp. 1586-1592 ◽  
Author(s):  
Wei Lu ◽  
Ding Zhou ◽  
Zhi Chen
Keyword(s):  
Calculation Method ◽  
Practical Calculation ◽  
Lateral Stability ◽  
Bridge Structure ◽  
Construction Process ◽  
Energy Principle ◽  
Arch Bridge ◽  
Long Span ◽  
Arch Bridges ◽  
Cable Stayed Bridges

A long-span cable-stayed arch bridge is a new form of bridge structure that combines features of cable-stayed bridges with characteristics of arch bridges. In the present study, we derived a practical calculation method for the lateral destabilization critical loading of cable-stayed arch bridges during the construction process based the energy principle. The validity of the method was verified with an example. The calculation method provides a quick and efficient way to evaluate the lateral stability of a cable-stayed arch bridge and a concrete filled steel tubular arch bridge during the construction process.

Construction Monitoring Technology Research on Large-Span V Structure Tied Arch Bridge

2013 ◽  
Vol 351-352 ◽  
pp. 1240-1243 ◽  
Author(s):  
Ting Yin ◽  
Wei Zhang ◽  
Yan Bo Zhao ◽  
Xiao Long Sun
Keyword(s):  
Actual State ◽  
Construction Process ◽  
Bridge Construction ◽  
Monitoring Point ◽  
Monitoring Technology ◽  
Construction Monitoring ◽  
Arch Bridge ◽  
Large Span ◽  
Long Span ◽  
Tied Arch Bridge

Large-span V structure tied arch bridge structure system is complex. In order to make the actual state of the bridge into the ideal state of maximum close to the design, we must make real-time monitoring in the key parts of the structure, and adjust to the design of the data by analysis calculated, to ensure the safety and reliability of arch bridge in the course of construction and into stress after the completed bridge. Combined with the construction monitoring of the main Xinglong Bridge on Si River, this paper introduces the main bridge construction process measurement a preliminary study on the large span V configuration basket tied arch bridge construction monitoring technology. Based on the construction monitoring of Xinglong Bridge on Si River, this paper introduces the main contents and methods of monitoring point location, monitoring control of construction process, and discussed the construction monitoring technology of long-span X-style tied arch bridge V structure.

Fire of steel and composite beam bridges

2019 ◽  
Author(s):  
Henryk Zobel ◽  
Wojciech Karwowski ◽  
Agnieszka Golubińska ◽  
Thakaa Al-Khafaji
Keyword(s):  
Fire Resistance ◽  
Composite Beam ◽  
Structural Integrity ◽  
Bridge Structure ◽  
Long Span ◽  
Long Span Bridge ◽  
Bridge Structures ◽  
Fire Scenarios ◽  
Design Construction ◽  
Cable Stayed Bridges

<p>The problem of bridge fires is growing. Because of a bad experience in Poland, it was decided to improve fire resistance of long span bridge structures, and of cable-stayed bridges in particular. Statistics shows that fire is a real threat to this kind of structure. They also confirm that the worst results of fire are for those with an orthotropic deck rather than with a concrete one. The basic problems to solve are how to predict fire resistance of a particular bridge and how to ensure safety and structural integrity of the bridge structure. Taking into account the fact that bridge standards do not include information relating to fire protection, and fire standards do not determine rules for design, construction and maintenance of such structures, there are no regulations for this problem. Fire scenarios are devoted to buildings, but the thermo-structural behavior of bridges is different.</p>

Rush Repair Method and Suggestion of Long-Span Arch Bridge in Wartime

2012 ◽  
Vol 538-541 ◽  
pp. 3211-3214
Author(s):  
Li He ◽  
Yong Jiu Qian
Keyword(s):  
Damage Assessment ◽  
Research Work ◽  
Blast Loading ◽  
Arch Bridge ◽  
Repair Method ◽  
Long Span ◽  
Future War ◽  
Arch Bridges ◽  
Damage Condition ◽  
Modern War

The enemies pay much attention to the opponent significant bridge in modern war and future war. A number of long-span arch bridges are damaged by blast loading. According to the damage condition and damage assessment of long-span arch bridge subjected to blast loading, a variety of methods suitable for rush repair in wartime are summarized, the rationalization proposals of enhancing anti-blast ability of long-span arch bridge are proposed. The research work is meaningful for the rush repair of long-span arch bridge.

Research of Deformation and Stress of Long-Span Arch Bridge under the Effect of Shrinkage and Creep in the Construction Process

2012 ◽  
Vol 178-181 ◽  
pp. 2273-2276
Author(s):  
Jie Jun Wang ◽  
Qing Liang Zhu ◽  
Xiao Liang Peng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Construction Process ◽  
Arch Bridge ◽  
Long Span ◽  
Shrinkage And Creep ◽  
Element Method

Considering the transformation of the system and the increasing of the load in the construction process of long-span arch bridge, combining with the definite engineering example and calculating the construction process of arch bridge by using finite element method,focusing on the analysis of deformation and stress of arch bridge under the effect of shrinkage and creep in the process of construction.

Calculation Analysis of Strengthening Arch Bridge Structure Based on Release Energy Method

2011 ◽  
Vol 71-78 ◽  
pp. 1732-1735
Author(s):  
Qing Ping Jin ◽  
Xian Bao Wang ◽  
Xue Jun Li
Keyword(s):  
Energy Method ◽  
Carrying Capacity ◽  
Safety Margin ◽  
Bridge Structure ◽  
Masonry Arch ◽  
Arch Bridge ◽  
Before And After ◽  
Arch Bridges ◽  
Calculation Analysis ◽  
Masonry Arch Bridge

The arch bridges were used widely for the good performance under the pressure in China. It was very sensitive to some factors as temperature , settlement etc so that the arch bridges occurred the disease, carrying capacity reduction or even structure destruction etc.In the paper, based on the characteristics of masonry arch bridges, reinforcement method was analyzed, according to the situation of a masonry arch bridge, release energy method was applied to strengthening project. By comparing the stress and the strain before and after the strengthening project, some conclusions could be drawn that the bridge structure carrying capacity had been raised, the energy accumulated in the bridge structure was released, the structure safety margin was improved.

MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation

2011 ◽  
Vol 90-93 ◽  
pp. 1402-1405 ◽  
Author(s):  
Zheng Ying Li ◽  
Peng Peng Dang ◽  
De Jian Mu
Keyword(s):  
Traveling Wave ◽  
Seismic Excitation ◽  
Semiactive Control ◽  
Linear Quadratic ◽  
Arch Bridge ◽  
Long Span ◽  
Control Scheme ◽  
Wave Effects ◽  
Arch Bridges ◽  
Magneto Rheological

For vibration control of long-span arch bridges under multi-support seismic excitation, this paper presents schemes of control to seismic responses of arch bridges with Magneto-Rheological dampers(MRD). In the semi-active control system of arch bridge-MRD, Linear Quadratic Gaussian (LQG)-based Sign function control algorithm is used to command MRD，and traveling wave effects on the responses of structure are considered. The Nimu arch bridge is used as a simulation example to verify the proposed control scheme. Numerical results show that traveling wave effects have no unfavorable influence on the control to response of arch bridge.

Safety Assessment and Strengthening for Long Span Double-Curved Arch Bridge with Design Drawing Lost

2014 ◽  
Vol 501-504 ◽  
pp. 1301-1304 ◽  
Author(s):  
Li Li
Keyword(s):  
High Performance ◽  
Safety Assessment ◽  
Work Condition ◽  
West China ◽  
Arch Bridge ◽  
Long Span ◽  
Arch Bridges ◽  
Design Proposal ◽  
Non Destructive ◽  
Design Drawing

There are many old damaged double-curved arch bridges with design drawing lost serviced for more than 40 years are still used in West China. Based on the repair and improving the carrying capacity work of a damaged badly double-curved arch bridge whose design drawing is lost with main span of 41.0m constructed in 1962 in Sichuan province of China, health inspecting and safety assessment for this type bridge using non-destructive methods is studied. Then the strengthening design of filling concrete and enlarging the section method is proposed. High performance self-dense slight-expansion concrete and embedded bar techniques are applied in strengthening construction. After the strengthening work completed, the arch bridge is still in very good work condition experienced two devastating disasters of the 2008 Sichuan Wenchuan and the 2013 Sichuan Lushan earthquake, with the distance of bridge site to epicenter less than 100km, which proved the safety assessment and the strengthening design proposal are effective and feasible.

Stability Analysis during Concrete Pumping for a CFST Arch Bridge Rib

2012 ◽  
Vol 446-449 ◽  
pp. 1199-1202
Author(s):  
Yan Jiang Chen ◽  
Xiao Qiang Ren ◽  
Jin Jie Wang ◽  
Da Peng Gu
Keyword(s):  
Stability Analysis ◽  
Modeling Method ◽  
Construction Control ◽  
Construction Process ◽  
Fem Model ◽  
Arch Bridge ◽  
Long Span ◽  
Cfst Arch Bridge ◽  
Concrete Pumping ◽  
The Stability

Abstract. This paper lists the problems during the stability analysis of long span CFST arch bridge and the corresponding modeling method. Based on the construction control of an orthotropic long span CFST arch bridge, a FEM model had been established to analysis the stability of its rib during the concrete pumping. The conclusion shows significant importance to the bridge’s construction process.

Behavior of Super Long Span Cable-Stayed Bridges during the Construction

2011 ◽  
Vol 63-64 ◽  
pp. 474-477
Author(s):  
Peng Liang ◽  
Zhong Ping Qin ◽  
Guo Xing Wang
Keyword(s):  
Temporal Variation ◽  
Nonlinear Analysis ◽  
Spatial And Temporal Variation ◽  
Geometrically Nonlinear ◽  
Construction Process ◽  
Geometrically Nonlinear Analysis ◽  
Cable Stayed Bridge ◽  
Long Span ◽  
Cable Stayed Bridges

In order to accurately reflect the effects and the spatial and temporal variation of long span cable-stayed bridge during the construction process, this paper, based on total CR formulation and the catenary cable element, improves the existing methods of geometrically nonlinear analysis and then develops a new software for nonlinear analysis of bridge through the entire construction.

Construction Control and Simulation Analysis of Long-Span Cable-Stayed Bridge

2011 ◽  
Vol 255-260 ◽  
pp. 816-820
Author(s):  
Fang Wen Wu ◽  
Cheng Feng Xue
Keyword(s):  
Calculation Method ◽  
Simulation Analysis ◽  
Construction Control ◽  
System Transformation ◽  
Long Span ◽  
Design Requirements ◽  
Forward Calculation ◽  
The Relationship ◽  
Element Theory ◽  
Cable Stayed Bridges

Simulation analysis is the basis for construction control of cable-stayed bridges, it monitors the process of the bridge construction. The relationship and importance of simulation and construction control are introduced in the paper. Based on the finite element theory and combined with construction theory of the cable -stayed bridges, according to use the software Midas/Civil, the construction characteristics of Masangxi Bridge is researched by making use of the forward calculation method and the backward calculation method. The results show that the system transformation of the bridge is occurred during the construction, thus, it is important to carry out careful and detailed forward simulation to ensure the safety of construction structure and meet with design requirements. The reasonable results can be drawn when the backward calculation method is combined with the forward calculation method.

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